Acidic Property of FSM-16. 2. Generation of Lewis Acid Sites and Catalysis

Acidic Property of FSM-16. 2. Generation of Lewis Acid Sites and Catalysis

Catalysis over Lewis acid sites on siliceous mesoporous FSM-16 was confirmed. Acidic property of FSM-16 was studied by pyridine TPD measurements, and catalyses of α-pinene isomerization and methylamine synthesis. FSM-16 possess both Brønsted and Lewis acid sites, and another Lewis acid site formed o...

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Veröffentlicht in:The journal of physical chemistry. B 1999-08, Vol.103 (31), p.6450-6456
Hauptverfasser: Yamamoto, Takashi, Tanaka, Tsunehiro, Inagaki, Shinji, Funabiki, Takuzo, Yoshida, Satohiro
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container_end_page 6456
container_issue 31
container_start_page 6450
container_title The journal of physical chemistry. B
container_volume 103
creator Yamamoto, Takashi
Tanaka, Tsunehiro
Inagaki, Shinji
Funabiki, Takuzo
Yoshida, Satohiro
description Catalysis over Lewis acid sites on siliceous mesoporous FSM-16 was confirmed. Acidic property of FSM-16 was studied by pyridine TPD measurements, and catalyses of α-pinene isomerization and methylamine synthesis. FSM-16 possess both Brønsted and Lewis acid sites, and another Lewis acid site formed on FSM-16 when a catalyst was pretreated above 873 K. α-Pinene isomerization was catalyzed over Brønsted acid sites, the activity of which is the highest when FSM-16 is pretreated at 673 K. Lewis acid sites on FSM-16 catalyze methylamine synthesis, and the initial rates are enhanced with increasing pretreatment temperature up to 1273 K. The structure of FSM-16 was completely retained throughout a pretreatment at 1273 K and a reaction procedure for methylamine synthesis at 673 K.
doi_str_mv 10.1021/jp990730x
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